Huawei H12-831_V1.0 Exam With Confidence Using Practice Dumps

This statement is false. Time zone configuration using the clock timezone command affects only the local display of time on a device (e.g., logs, timestamps), and has no effect on dynamic routing protocol operation.

OSPF, BGP, IS-IS, and other routing protocols do not rely on time synchronization or time zone matching between devices to establish neighbor relationships.

Even if devices are in different time zones, they can still form adjacencies as long as IP connectivity and protocol parameters (e.g., hello/dead intervals, authentication) are correctly configured.

✅ Official Reference from Huawei:

" The clock timezone command sets the local time zone for display purposes. It does not affect protocol operations or neighbor relationships. "

— [Huawei HCIA-Datacom Certification Guide – System Management Section]

???? Key Concept:

IS-IS is a Layer 2 routing protocol and does not rely on IP addressing to establish neighbor relationships. Unlike OSPF, IS-IS runs directly over the data link layer (CLNS - ISO 8473) and uses MAC-level communication for neighbor discovery.

???? IPv6 Addresses in the Scenario:

R1 Interface:

2000:12::1/64

2000:21::1/64

R2 Interface:

2000:12::2/127

2000:21::2/127

Even if IP prefixes on the interfaces are mismatched, IS-IS adjacency can still be formed, because:

IS-IS does not use IP address matching for adjacency formation.

What matters is that the interfaces are on the same Layer 2 segment and IS-IS is enabled on both sides.

✅ Final Answer: B. FALSE

Official Huawei Extract:

" IS-IS operates at Layer 2 and establishes neighbor relationships regardless of IP address configuration. As long as IS-IS is enabled and interfaces are connected at Layer 2, a neighbor relationship can be established—even with different IP prefixes. "

— [Huawei HCIA-Datacom Certification Guide – IS-IS over IPv6 Chapter]